phasor

(noun)

A representation of a complex number in terms of a complex exponential.

Related Terms

  • sinusoidal steady state
  • rms
  • Lenz's law
  • complex numbers

Examples of phasor in the following topics:

  • Phasors

    • Phasors separate the dependencies on A, ω, and θ into three independent factors.
    • The term phasor therefore often refers to just those two factors.
    • There are two key ideas behind the phasor representation of a signal:
    • An example of series RLC circuit and respective phasor diagram for a specific ω.
    • Electrical engineers, electronics engineers, electronic engineering technicians and aircraft engineers all use phasor diagrams to visualize complex constants and variables (phasors).
  • Capacitors in AC Circuits: Capacitive Reactance and Phasor Diagrams

    • Due to the phase difference, it is useful to introduce phasors to describe these circuits.
    • To get there, we will first introduce a very general, pictorial way of representing a sinusoidal wave, using phasor.
    • Phasors separate the dependencies on A (amplitude), $\nu$ (frequency), and θ (phase) into three independent factors.
    • In those situations, phasors allow this common feature to be factored out, leaving just the A and θ features.
    • A phasor can be seen as a vector rotating about the origin in a complex plane.
  • Inductors in AC Circuits: Inductive Reactive and Phasor Diagrams

    • Therefore, the phasor representing the current and voltage would be given as in .
    • Again, the phasors are vectors rotating in counter-clockwise direction at a frequency $\nu$ (you can see that the voltage leads the current).
    • Subsequent Atoms will discuss how these phasors can be used to analyze RC, RL, LC, and RLC circuits.
  • RLC Series Circuit: At Large and Small Frequencies; Phasor Diagram

  • Power

    • Phasor diagram for an RLC series circuit.
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